Establishing communication connections

Abstract

In an example system comprising a location engine and a protocol engine, the location engine determines a direction of movement between a first device and a second device and the protocol engine establishes a communication connection when a distance between the first device and the second deice is less than a distance designated for automatic connection.

What is claimed is: 
     
         1 . A non-transitory computer-readable storage medium (NTCRSM) comprising a set of instructions executable by a processor resource to:
 in response to detection of BLUETOOTH signals of a first device, determine whether the first device is part of a known device pair,   in response to a determination that the known device pair is an authorized pair for automatic connection:   receive a received signal strength indicator (RSSI) dataset from the BLUETOOTH signals of the first device;   identify the first device is within a first threshold, the first threshold being greater than a minimum signal strength capability of the BLUETOOTH signals;   determine a trajectory of the first device based on the RSSI dataset; and   cause a communication connection to be established between the first device and a second device when the first device is within the first threshold of the second device and the determined trajectory is towards the second device.   
     
     
         2 . The NTCRSM of  claim 1 , wherein the set of instructions is executable by the processor resource to:
 cause the communication connection to be disconnected when the first device passes a second threshold, the second threshold being less than the first threshold and greater than the minimum signal strength capability of the BLUETOOTH signals.   
     
     
         3 . The NTCRSM of  claim 2 , wherein:
 the first threshold is greater than the second threshold by a tolerance amount;   the first threshold and the second threshold are calculated based on a user preference and an initial dataset corresponding to the RSSI dataset.   
     
     
         4 . The NTCRSM of  claim 1 , wherein the set of instructions is executable by the processor resource to:
 cause a prompt to display on the first device with a distance selection;   determine the first threshold based on a response to the prompt and an RSSI calibration dataset associated with the known device pair;   store a set of credentials for a second protocol with pair information corresponding to a pairing of the first device and the second device via the first protocol;   cause the communication connection to initiate over a second protocol in response to detection of a connect event initiated by the BLUETOOTH signals of the first device when the first device is available for dedicated data transfer; and   use the set of credentials for the second protocol to establish the communication connection.   
     
     
         5 . The NTCRSM of  claim 1 , wherein the set of instructions is executable by the processor resource to:
 cause initiation of a data transfer over the communication connection in response establishing the communication connection when the first device is within the first threshold of the second device and the determined trajectory is towards the second device.   
     
     
         6 . A method of data transfer, the method comprising:
 determining whether a peripheral device has been previously paired with a host device;   establishing a first communication connection between the peripheral device and the host device;   using a distance parameter and a RSSI calibration dataset corresponding to pair information of the peripheral device and the host device to determine an automatic connection signal strength corresponding to the distance parameter that represents a distance threshold between the host device and the peripheral device; and   in response to a determination that the host device is traveling towards the peripheral device above an automatic connection signal strength, sending a request to establish a second communication connection based on the pair information stored with respect to the peripheral device and the host device over a first communication protocol of the first communication connection.   
     
     
         7 . The method of  claim 6 , further comprising:
 verifying whether any other device pairs are actively transferring data with the peripheral device;   transferring audio data or video data via a second communication protocol when the device pair corresponding to the host device and the peripheral device is identified as available for data transfer and the host device is within an automatic connection signal strength threshold, wherein:   the first communication protocol is a BLUETOOTH protocol;   the second communication protocol is an 802.11 (WIFI) protocol;   the data transfer includes a transfer of video data using a WIFI DIRECT protocol via the second communication connection; and   security credentials usable with the WIFI DIRECT protocol are stored with pair information for the BLUETOOTH protocol of a corresponding device pair.   
     
     
         8 . The method of  claim 6 , comprising:
 in response to a determination that the first device is traveling away from the second device below an automatic disconnection signal strength, sending a request to disconnect the second communication connection,   wherein the automatic disconnection signal strength is:   less than the automatic connection signal strength;   mutually exclusive to the automatic connection signal strength; and   represents a distance threshold that is less than the protocol maximum range of a second communication protocol of the second communication connection.   
     
     
         9 . The method of  claim 8 , wherein:
 the protocol maximum distance of the first communication connection is less than the protocol maximum distance of the second communication connection; and   the distance threshold corresponding to the automatic disconnection signal strength is less than the protocol maximum range of the first protocol of the first communication connection.   
     
     
         10 . The method of  claim 6 , comprising:
 identifying a new device pair via the first communication connection;   calibrating the signal strength calculation based on the RSSI signal of the first communication connection and the distance parameter when the new device pair is identified, the distance parameter representing a distance at which the user expects to make an automatic connection;   storing a credential for a second communication protocol with the pair information corresponding to the first communication protocol; and   using the calibrated signal strength calculation to determine if the current signal strength between the peripheral device and the host device is greater than the automatic connection signal strength.